FYI, Walmart now sells their Super Tech brand filter for the Cobalts. They also have the Fram. I compared the Super Tech to the Fram, and it was the EXACT same filter... My guess is they are made by someone like WIX or something. The Super Tech also included a new o-ring for the filter cap. The Super Tech was around $5.50 where I got mine. Naturally I tried the Super Tech...

I'd be interested also...I put a Wix in mine...When I had my modded 5.3 in my truck I only went OEM, Wix, or NAPA Gold and I got 220,000 out of it and It's still going w/ the guy I sold it to. By the way 96,000 of those miles were after mods, and the truck ran 13.5's before I sold it, some burnouts were bouncing off the 7000rpm rev limiter...But back on topic if the price is right I may pick up 5 or 10 of 'em...Zed

Wix is a good filter, but don't pay more than you have to. The Auto Value Parts Stores (also known as Advantage, Bumper to Bumper, and Henderson) have them packaged as the Parts Master brand for less money. Plus, they come with new o-rings with each filter.

Im using a Bosch style oil filter in my car I forget what they are called specifically but its made up of all wood fibers, and the piece that sticks to the upper portion of the car is the only plastic piece I bought it at international parts store where my buddy works and I havent had any problems with it. As far as gains I couldnt tell you lol, have to get one and try it out, ima try and run over there to find out and Ill try to let you guys know in case a couple of you wanna experiment with em...